Education Technology

# Activities

• ##### Subject Area

• Math: Algebra I: Quadratic Functions
• Science: Physical Science: Newton's Laws
• Science: Physics: Dynamics

6-8

60 Minutes

• ##### Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition
• TI-84 Plus C Silver Edition
• TI-84 Plus CE
• ##### Software

TI Connect™
TI Connect™ CE

• ##### Accessories

CBR™/CBR 2™
TI Connectivity Cable

• ##### Other Materials
This is Activity 11 from the EXPLORATIONS Book:
Math and Science in Motion: Activities for Middle School.

The following material is required for this activity:
• A bouncing ball

## Curve Ball

#### Activity Overview

In this activity, students' will create a Height-Time plot for a bouncing ball and use a quadratic equation to describe the ball's motion.

#### Key Steps

• With a bouncing ball and a CBR2, students derive a quadratic in vertex form and factored form.

• Students use guess-and-check method to find the leading coefficient and in the process learn its relationship with the shape of the graph.

• An extension of this activity includes doing a quadratic regression that gives the quadratic equation in standard form.